AUTOOL LM150 Digital Manifold Gauges Digital AC Gauges

AUTOOL LM150Product OverviewThe AUTOOL LM150 digital manifold gauge is designed for HVAC installation, refrigeration maintenance, and automotive A/C service. It supports dual pressure testing, dual temperature testing, digital readouts, multi-unit conversion, refrigerant filling and measurement, system evacuation, pressure leak testing, and a built-in 93-refrigerant database in a durable anti-slip body with a 3.5-inch backlit LCD and 1/4-inch standard interfaces.Dual Pressure Test Dual Temperature Test 93 Refrigerants Vacuum & Leak Test-101kPa-6MPaPressure Test Range10MPaOverload Limit4×AAPower Supply3 YearsWarranty Support Click to enlarge Click to enlargeBefore You Order And UseBefore You Order And UseCheck the instrument range, hose pressure rating, tested equipment rating, working environment, and personal protection requirements before connecting the LM150 digital manifold pressure tester.Gauge Pressure ReadingPressure measured by the LM150 digital manifold pressure tester is gauge pressure. Confirm the pressure type required by the system before interpreting readings.Instrument Test RangeThe pressure test range is -101kPa to 6MPa, equal to about -0.1bar to 60bar. Do not use it beyond the measuring range of the instrument.Maximum Pressure LimitThe instrument maximum pressure / overload limit is 10MPa, equal to 100bar. This limit is not the same as the normal working range.Standard Hose LimitThe standard hose maximum working pressure is 600PSI, approximately 4.13MPa / 41.3bar. The hose burst pressure is 3000PSI, approximately 20.68MPa / 206.8bar.Check The Tested DeviceCheck the rated pressure of the equipment under test before connecting. If the included hose does not meet your pressure requirement, use a suitable replacement hose for testing.Work SafelyWear approved protective equipment and use the LM150 in a well-ventilated environment to help avoid exposure to toxic gases during refrigerant service.Safety And Storage NotesDo not use or store the device in high temperature, high humidity, flammable, explosive, or strong electromagnetic field environments.Do not modify the internal circuit. Unauthorized modification may damage the instrument or create hazards.Inspect pipe fittings, hoses, hose terminals, and valve stems before testing. Replace damaged parts before use.Do not remove the high-pressure valve connection until the pressure drops to a safe point.Different equipment and refrigerants may require different filling procedures. Follow the refrigeration system service requirements before charging.Key FeaturesKey FeaturesLM150 combines refrigerant system service, high/low pressure and temperature readings, vacuum and leak testing, multi-unit display, two wired temperature clamps, and durable field-use hardware.Multi-Mode A/C ServiceSupports refrigerant filling and measurement, refrigerant system evacuation, pressure leak testing, vacuum pressure measurement, vacuum percentage measurement, leakage pressure measurement, and leakage time record.HP / LP Data DisplayMeasures high-pressure and low-pressure line pressure, high-pressure and low-pressure line temperature, evaporation temperature, and condensation temperature for clearer service decisions.93 Refrigerant DatabaseThe built-in NIST-standard refrigerant database supports 93 refrigerants and helps display refrigerant-related operating data directly during service.3.5-Inch Backlit LCDThe large backlit LCD helps users read pressure, temperature, mode, refrigerant, and test data clearly, including in darker working environments.V-Shaped Ball Valve ControlThe V-shaped ball valve opening design makes high and low pressure valve control easier, more direct, and more durable than ordinary knob-style valve operation.IP54 Anti-Slip HousingThe body uses high-strength engineering plastics and flexible anti-slip silicone. The shell is IP54-rated and designed for stable handling in workshop use.Two Wired Temperature ClampsThe kit includes two wired clip-on temperature probes for real-time evaporation and condensation temperature measurement on refrigeration pipes.Multi-Unit ConversionSupports pressure unit switching among kPa, MPa, bar, inHg, and psi, plus temperature switching between °C and °F.Durable Interface DesignLong-life valve switches, refrigerant observation window, pressure release valve, and 1/4-inch standard interfaces improve daily service usability. Click to enlarge Click to enlarge Click to enlarge Click to enlarge Click to enlargeSpecificationsLM150 Product SpecificationsReview the pressure range, vacuum range, temperature range, accuracy, battery type, size, weight, and interface information before using LM150 on refrigeration or A/C systems.Product And ApplicationProductAUTOOL LM150 Digital Manifold Pressure TesterApplicationHVAC installation, refrigeration equipment testing, refrigeration equipment maintenance, automotive A/C service, air conditioners, and cold storage systemsPressure TypeGauge pressureInterface1/4-inch standard interface designPressure And VacuumPressure Test UnitkPa, MPa, bar, inHg, psiPressure Test Range0kPa-6000kPa / 0-6MPaPressure Test Resolution1kPaPressure Test Accuracy±0.5% FS 5dgtPressure Overload Limit10000kPa / 10MPa / 100barVacuum Test TypeRelative vacuumVacuum Test UnitkPa, MPa, bar, inHg, psiVacuum Test Range-101kPa-0kPaVacuum Test Resolution1kPaStandard Hose Working Pressure600PSI / approx. 4.13MPa / 41.3barStandard hose burst pressure3000PSI / approx. 20.68MPa / 206.8barTemperature And RefrigerantsTemperature Test Unit°C, °FTemperature Test Range-40°C to 150°C / -40°F to 302°FTemperature Test Resolution0.1°C / 0.1°F from -40 to 99.9; 1°C / 1°F from 100 to upper rangeTemperature Test Accuracy±0.5°C 2dgt / ±0.9°F 2dgtRefrigerant DatabaseBuilt-in 93 refrigerants according to NIST standardTemperature ProbesTwo wired clamp-on temperature probes includedHardwareDisplay3.5-inch backlit LCDHousingHigh-strength engineering plastic body with flexible anti-slip silicone and IP54-rated shellPower Supply4 × 1.5V AA / LR6 batteriesDimension240 × 145 × 50mmWeight950gWarranty Support3-year support for eligible non-human damage cases; lifetime maintenance support Click to enlarge Core SpecificationsPressure TypeGauge pressurePressure Range0kPa-6000kPa / 0-6MPaVacuum Range-101kPa-0kPaOverload Limit10MPa / 100barHose Working Pressure600PSI / approx. 4.13MPaTemperature Range-40°C to 150°C / -40°F to 302°FRefrigerants93 refrigerantsPower Supply4 × 1.5V AA / LR6 batteriesDimension240 × 145 × 50mmWeight950g How To UseHow To UseLM150 supports refrigerant filling and pressure inspection, vacuum operation, and pressure leak testing. Use the manual and the specific refrigeration system procedure before service.Refrigerant Filling & Pressure InspectionTurn off the blue and red valves, power on the instrument, select pressure test status, connect according to the system direction, vent air through the pressure release valve, then fill through the correct valve according to system conditions.Vacuum OperationTurn off the blue and red valves, power on the instrument, switch to vacuum test mode, select the reading unit, zero the pressure display if needed, connect the system, then run the vacuum pump and close valves after vacuuming.Pressure Leak TestWith the blue and red valves turned off, power on the instrument and switch to pressure leak test mode. The display records initial pressure, instant pressure, ΔP pressure difference, and test time.Temperature Probe ReadingConnect the wired clamp-on probes to the T1 and T2 sockets and make sure they fully contact the refrigeration pipes. The LCD can display real-time temperature data when probes are connected.Use NotesWhen the instrument is turned on, if the high and low pressure display area shows non-zero digits, press and hold the Zero button until it returns to zero.For refrigerant filling, do not remove the high-pressure valve connection until the pressure drops to a safe point.The filling operation of different equipment or refrigerants may vary. Read the specific service requirements to avoid user injury or equipment damage.The manual describes SH / SC display when the tested refrigerant is preset and clamp-on probes are connected. If subcooling / superheat is a required workflow, confirm model suitability before ordering.Product ComparisonProduct ComparisonCompare LM150 with LM70, LM100, LM120, LM120 , LM130, and LM160 before choosing the right refrigerant database, pressure valve, temperature clamp, visible window, program control, pressure unit, and vacuum unit.LM150 FocusLM150 supports vacuuming mode, refrigerant mode, pressure leak testing, trichromatic tube, two wired temperature clamps, foldable hook, refrigerant visible window, 93 refrigerants, high/low pressure valves, and kPa / MPa / bar / inHg / psi units.Compared With LM120 / LM120 LM120 and LM120 list 92 refrigerants. LM150 lists 93 refrigerants and adds the two wired temperature clamp configuration shown in the comparison chart.Compared With LM160LM160 is the higher-end smart option with program control system, 8 languages, 95 refrigerants, and two-side handrails. Choose LM160 if program control is required.Decision CheckBefore ordering, compare refrigerant database size, temperature clamp requirement, pressure and vacuum units, visible window, valve type, handrail design, and program control needs. Click to enlarge Click to enlargeWhat Is In The BoxWhat Is In The BoxThe packing list image shows the LM150 main unit and included accessories. Packing List uses only one most relevant package image to keep the Description compact and clear.Main UnitAUTOOL LM150 digital manifold pressure testerStorage CaseHard carrying case shown in the package imageHosesRed, blue, and yellow hoses shown in the package imageAdaptersSmall adapters and brass connector shown in the package imageTemperature ClampsTwo wired clip-on temperature probe clampsDocumentationUser manual and retail boxRelated ProductsRelated ProductsCompare related AUTOOL digital manifold gauge models before choosing the right refrigerant database, temperature clamp support, program control, and workshop service capability.Select options This product has multiple variants. The options may be chosen on the product page Add to wishlist Add to compare Quick view iconQuick view Smart Digital Manifold GaugeAUTOOL LM120 AC Manifold Gauge Refrigerant IdentifierRated 0 out of 5(0) From US$98.00 Select options This product has multiple variants. The options may be chosen on the product page Select options This product has multiple variants. The options may be chosen on the product page Add to wishlist Add to compare Quick view iconQuick view Smart Digital Manifold GaugeAUTOOL LM120 Digital Refrigerant Gauges Hvac GaugesRated 0 out of 5(0) From US$149.00 Select options This product has multiple variants. The options may be chosen on the product page Select options This product has multiple variants. The options may be chosen on the product page Add to wishlist Add to compare Quick view iconQuick view Smart Digital Manifold GaugeAUTOOL LM150 Digital Manifold Gauges Digital AC GaugesRated 0 out of 5(0) From US$159.00 Select options This product has multiple variants. The options may be chosen on the product page Select options This product has multiple variants. The options may be chosen on the product page Add to wishlist Add to compare Quick view iconQuick view Smart Digital Manifold GaugeAUTOOL LM160 Refrigerant Leak Detector Digital Manifold GaugesRated 0 out of 5(0) From US$209.00 Select options This product has multiple variants. The options may be chosen on the product page Manual And DownloadsManual And DownloadsDownload the LM150 manual for pressure range warnings, refrigerant filling, pressure inspection, vacuum operation, pressure leak testing, common problems, maintenance, and warranty information. Click to enlargeAUTOOL LM150 User ManualOpen the PDF manual for setup, specifications, operation modes, troubleshooting, and safe-use instructions. Download ManualNeed Pressure Or Compatibility Confirmation?Contact AUTOOL Store before ordering if you need to confirm pressure range, standard hose working pressure, refrigerant compatibility, interface requirements, replacement hoses, package contents, or model selection.Email[email protected] WhatsApp 86 189 2647 7404Questions And AnswersThese answers cover LM150 use cases, pressure range, hose limits, refrigerant database, battery, temperature clamps, model differences, safety checks, and common troubleshooting items. What Is AUTOOL LM150 Used For? LM150 is a digital manifold pressure tester for HVAC installation, refrigeration equipment testing and maintenance, automotive A/C service, air conditioners, and cold storage systems. It supports dual pressure testing, dual temperature testing, refrigerant service, vacuum measurement, and pressure leak testing. Is The Pressure Reading Gauge Pressure Or Absolute Pressure? The LM150 pressure reading is gauge pressure. Confirm whether the system procedure requires gauge pressure or another pressure reference before interpreting test data. What Is The LM150 Pressure Test Range? The overall pressure and vacuum coverage is -101kPa to 6MPa, approximately -0.1bar to 60bar. The pressure test range is 0kPa to 6000kPa, and the vacuum test range is -101kPa to 0kPa. Do not use it beyond the measuring range of the instrument. What Is The Standard Hose Pressure Limit? The maximum working pressure of the standard hose is 600PSI, approximately 4.13MPa / 41.3bar. The hose burst pressure is 3000PSI, approximately 20.68MPa / 206.8bar. If the included hose does not meet your pressure requirement, use a suitable replacement hose. How Many Refrigerants Does LM150 Support? LM150 includes a built-in 93-refrigerant NIST-standard database. The refrigerant image and comparison chart should be checked if you need a specific refrigerant confirmed before ordering. What Power Supply Does LM150 Need? LM150 uses 4 × 1.5V AA / LR6 batteries. If the low-power sign appears, replace the batteries as required to avoid affecting normal use. Are Temperature Clamps Included? Yes. The LM150 packing list image shows two wired clip-on temperature probe clamps. Connect them to the T1 and T2 sockets and make sure they fully contact the refrigeration pipes for real-time temperature readings. What Should I Check Before Testing? Check the rated pressure of the tested equipment, confirm that the system does not exceed the instrument range, inspect pipe fittings and hoses, replace damaged parts immediately, wear approved protective equipment, and work in a well-ventilated area. Why Might Refrigerant Filling Fail? The refrigeration system inlet has a valve core. When connecting hoses, pay attention to both hose terminals: connect the terminal with a core to the refrigeration system and the terminal without a core to the instrument. What Are Common Leak Points To Check? Check hose terminals, nylon pads, pipe fittings, hoses, valve stems, and refrigeration system pipes and connectors. Hose terminal nylon pads have a limited service life, and overuse or damage may cause leakage. Tighten the copper plug screw on the middle refrigerant inlet before or after operation as required. What Is The Difference Between LM150 And LM160? LM150 supports vacuuming mode, refrigerant mode, pressure leak testing, 93 refrigerants, high/low pressure valves, two wired temperature clamps, foldable hook, and refrigerant visible window. LM160 is the higher-end smart model with program control system, 8 languages, 95 refrigerants, and two-side handrails. Choose LM160 if program control is required. How Long Is The Warranty? AUTOOL provides 3-year warranty support for eligible non-human damage cases and lifetime maintenance support. Contact support for accessory confirmation, troubleshooting, replacement parts, and model selection questions.Warranty And ContactWarranty And ContactFor LM150 pressure range confirmation, hose pressure limits, refrigerant database questions, A/C service setup, package contents, manual support, troubleshooting, accessories, or model selection, contact AUTOOL Store directly.Pre-Sales And Product SupportUse support if you need help confirming LM150 pressure range, standard hose limits, refrigerant compatibility, refrigerant filling workflow, vacuum operation, pressure leak test setup, temperature clamp use, package contents, or comparison with LM120, LM120 , and LM160.3-year warranty support for eligible non-human damage casesLifetime maintenance support and accessory guidancePressure range and hose pressure confirmationRefrigerant database and system compatibility confirmationTemperature clamp, hose, adapter, and package-content confirmationLow-battery, hose, valve stem, refrigerant filling, and leak-point troubleshootingLM120 / LM120 / LM150 / LM160 model selection supportSupport replies as soon as possible, generally within 24 hoursEmail Support[email protected] WhatsApp Support 86 189 2647 7404